package com.zzyl.nursing.service.impl;

import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.*;

import cn.hutool.core.bean.BeanUtil;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.zzyl.common.core.page.TableDataInfo;
import com.zzyl.nursing.dto.CancelTaskDto;
import com.zzyl.nursing.dto.NursingTaskDto;
import com.zzyl.nursing.mapper.NursingElderMapper;
import com.zzyl.system.mapper.SysUserMapper;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.IdcardUtil;
import cn.hutool.core.util.ObjectUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.zzyl.common.core.domain.entity.SysUser;
import com.zzyl.common.utils.SecurityUtils;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.nursing.domain.*;
import com.zzyl.nursing.dto.NursingTaskListDto;
import com.zzyl.nursing.mapper.NursingLevelMapper;
import com.zzyl.nursing.mapper.NursingProjectPlanMapper;
import com.zzyl.nursing.service.*;
import com.zzyl.nursing.vo.NursingPlanVo;
import com.zzyl.nursing.vo.NursingProjectPlanVo;
import com.zzyl.nursing.vo.NursingTaskVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.zzyl.nursing.mapper.NursingTaskMapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import java.util.stream.Collectors;

/**
 * 护理任务Service业务层处理
 * 
 * @author ruoyi
 * @date 2024-09-27
 */
@Service
@Slf4j
public class NursingTaskServiceImpl extends ServiceImpl<NursingTaskMapper,NursingTask> implements INursingTaskService
{
    @Autowired
    private NursingTaskMapper nursingTaskMapper;

    @Autowired
    private ICheckInService checkInService;
    @Autowired
    private SysUserMapper sysUserMapper;

    @Autowired
    private ICheckInConfigService checkInConfigService;


    @Autowired
    private INursingPlanService nursingPlanService;

    @Autowired
    private INursingElderService nursingElderService;

    @Autowired
    private INursingProjectService nursingProjectService;


    @Autowired
    private NursingProjectPlanMapper nursingProjectPlanMapper;
    @Autowired
    private INursingLevelService nursingLevelService;

    @Autowired
    private NursingLevelMapper nursingLevelMapper;

    @Autowired
    private IElderService elderlyService;
    @Autowired
    private NursingElderMapper nursingElderMapper;

    /**
     * 查询护理任务
     *
     * @param id 护理任务主键
     * @return 护理任务
     */
    @Override
    public NursingTaskVo selectNursingTaskById(Long id)//护理接口2
    {
        // 查询护理任务,通过ID查询护理任务实体对象
        NursingTask nursingTask = nursingTaskMapper.selectNursingTaskById(id);
       // 如果结果为空，直接返回为null
        if (ObjectUtil.isEmpty(nursingTask)) {
            return null;
        }
        //获取当前用户,获取当前登录用户的ID
        Long userId = SecurityUtils.getUserId();
        //根据用户ID查询完整的用户信息
        SysUser user = sysUserMapper.selectSysUserByUserId(userId);
        //查询结果集中需要的数据，定义一个方法查询任务详情VO对象（包含前端所需的完整信息）
        NursingTaskVo nursingTaskVo = nursingTaskMapper.selectTaskVoById(id);
        //更新信息，设置更新人的的相关信息
        nursingTaskVo.setUpdateBy(user.getUserId());//设置更新人ID
        nursingTaskVo.setUpdater(user.getNickName());//设置更新人姓名
        //处理护工ID：将逗号分隔的字符串转换为Long列表
        String nursingId = nursingTask.getNursingId();//获取存储的护工ID字符串（如“1,2，3”）
        List<Long> longList = Arrays.stream(nursingId.split(","))//按逗号分割字符串
                .map(Long::valueOf)//转换为Long类型
                .collect(Collectors.toList());//收集为List<Long>
        //根据护工ID列表查询对应的姓名列表
        List<String> nursingName = sysUserMapper.selectUserByIds(longList);
        //将护工姓名列表设置到VO对象中
        nursingTaskVo.setNursingName(nursingName);
        //根据老人的身份证号获取年龄和性别
        Elder elder = elderlyService.lambdaQuery()
                .eq(Elder::getId, nursingTask.getElderId())
                .one();
        //通过身份证号计算年龄（使用工具类）
        int ageByIdCard = IdcardUtil.getAgeByIdCard(elder.getIdCardNo());
        //通过身份证号获取性别（使用工具类，返回0为女，1为男）
        int genderByIdCard = IdcardUtil.getGenderByIdCard(elder.getIdCardNo());
        //将性别代码转化为中文描述并设置到VO中
        if (genderByIdCard == 0) {
            nursingTaskVo.setSex("女");
        } else {
            nursingTaskVo.setSex("男");
        }
        //设置老人年龄到VO中
        nursingTaskVo.setAge(ageByIdCard);

        //返回完成的护理任务详情Vo
        return nursingTaskVo;
    }

    /**
     * 查询护理任务列表
     *
     * @param dto 护理任务
     * @return 护理任务
     */
    @Override
    public TableDataInfo selectNursingTaskList(NursingTaskListDto dto) {//护理接口1
        //创建分页对象，传入的参数是页码和每页的条数（在创建的Dto获取）
        Page<NursingTask> page = new Page<>(dto.getPageNum(), dto.getPageSize());
        //条件查询护理任务
        Page<NursingTask> nursingTaskPage = lambdaQuery()
                .eq(dto.getProjectId() != null, NursingTask::getProjectId, dto.getProjectId())//护理项目查询
                .like(dto.getElderName() != null, NursingTask::getElderName, dto.getElderName())//模糊查询-老人姓名
                .like(dto.getNurseId() != null, NursingTask::getNursingId, dto.getNurseId())//模糊查询-护工id
                .between(!ObjectUtil.isEmpty(dto.getStartTime()) && !ObjectUtil.isEmpty(dto.getEndTime()), NursingTask::getCreateTime, dto.getStartTime(), dto.getEndTime())//根据时间查询
                .eq(dto.getStatus() != null, NursingTask::getStatus, dto.getStatus()).page(page);//根据状态查询
        //获取查询结果中的记录列表
        List<NursingTask> nursingTaskList = nursingTaskPage.getRecords();
        //创建最终存放结果的集合Vo
        List<NursingTaskVo> result = new  ArrayList<>();
        //定义一个方法查出所有员工，并将他们的ID和名称保存在map中
        List<SysUser> sysUserList = sysUserMapper.selectFromUser();
        //将员工列表转换为Map，方便后续查询，key为员工ID，value为员工名称
        HashMap<Long, String> userMap = sysUserList.stream()
                .collect(Collectors.toMap(
                        SysUser::getUserId,         // Key
                        SysUser::getNickName,       // Value
                        (existing, replacement) -> existing, // 如果有重复 key 的处理策略
                        HashMap::new         // 指定结果类型为 HashMap
                ));

        //遍历nursingTaskList
        nursingTaskList.forEach(nursingTask -> {
            NursingTaskVo vo = BeanUtil.toBean(nursingTask, NursingTaskVo.class);
            String nursingId = nursingTask.getNursingId();
            //将字符串转换为Long列表 得到护工ID列表
            List<Long> nursingIdList = Arrays.stream(nursingId.split(","))
                    .map(String::trim)     // 去除可能的空格
                    .map(Long::valueOf)    // 转换为 Long
                    .collect(Collectors.toList());
            List<String> nursingNameList = new ArrayList<>();
            //判断当前任务的护工是否包含该护工
            if (dto.getNurseId() == null || nursingIdList.contains(dto.getNurseId().longValue())){
                //遍历所有护工ID
                for (Long nursingIdLong : nursingIdList) {
                    // 得到护工的名字
                    String name = userMap.get(nursingIdLong);

                    nursingNameList.add(name);
                }
                //将护工姓名列表设置到VO对象中
                vo.setNursingName(nursingNameList);
            }
            result.add( vo);
        });
        //返回分页表格数据，包含结果列表和总记录数
        return  new TableDataInfo(result, (int) nursingTaskPage.getTotal());
    }

    /**
     * 新增护理任务
     *
     * @param nursingTask 护理任务
     * @return 结果
     */
    @Override
    public int insertNursingTask(NursingTask nursingTask)
    {
        return save(nursingTask)?1:0;
    }

    /**
     * 修改护理任务
     *
     * @param nursingTask 护理任务
     * @return 结果
     */
    @Override
    public int updateNursingTask(NursingTask nursingTask)
    {
        return updateById(nursingTask)?1:0;
    }

    /**
     * 批量删除护理任务
     *
     * @param ids 需要删除的护理任务主键
     * @return 结果
     */
    @Override
    public int deleteNursingTaskByIds(Long[] ids)
    {
        return removeByIds(Arrays.asList(ids))?1:0;
    }

    /**
     * 删除护理任务信息
     *
     * @param id 护理任务主键
     * @return 结果
     */
    @Override
    public int deleteNursingTaskById(Long id)
    {
        return removeById(id)?1:0;
    }



    /**
     * 生成护理任务
     *
     * @param elder
     */
    @Override
    public void createMonthTask(Elder elder) {
        //校验
        if (elder == null || elder.getId() == null) {
            log.info("老人不能为空");
            return;
        }

        //获取入住信息
        CheckIn checkIn = checkInService.getOne(Wrappers.<CheckIn>lambdaQuery().eq(CheckIn::getElderId, elder.getId()));

        //获取入住及入住配置信息
        CheckInConfig checkInConfig = checkInConfigService.getOne(Wrappers.<CheckInConfig>lambdaQuery().eq(CheckInConfig::getCheckInId, checkIn.getId()));
        //开始时间
        LocalDateTime startTime = LocalDateTime.now();
        //判断开始是在当天时间
        if (checkInConfig.getFeeStartDate().toLocalDate().isEqual(LocalDateTime.now().toLocalDate())) {
            startTime = checkInConfig.getFeeStartDate();
        }

        //护理等级
        NursingLevel nursingLevel = nursingLevelService.selectNursingLevelById(checkInConfig.getNursingLevelId());
        //护理计划
        NursingPlanVo nursingPlanVo = nursingPlanService.selectNursingPlanById(nursingLevel.getLplanId());
        //查询老人对应的护理员列表
        List<NursingElder> nursingElderList = nursingElderService.list(Wrappers.<NursingElder>lambdaQuery().eq(NursingElder::getElderId, elder.getId()));
        String nursingIds;
        if (CollUtil.isNotEmpty(nursingElderList)) {
            List<Long> list = nursingElderList.stream().map(NursingElder::getNursingId).collect(Collectors.toList());
            //多个id用逗号分隔，转换为字符串
            nursingIds = StringUtils.join(list, ",");
        } else {
            nursingIds = "";
        }

        //查询所有的护理项目
        List<NursingProject> list = nursingProjectService.list();
        //转换为map key是id,value是name
        Map<Long, String> nursingProjectMap = list.stream().collect(Collectors.toMap(NursingProject::getId, NursingProject::getName));

        //组装护理任务
        List<NursingTask> nursingTasks = new ArrayList<>();

        LocalDateTime finalStartTime = startTime;
        nursingPlanVo.getProjectPlans().forEach(v -> {
            //执行频次
            Integer executeFrequency = v.getExecuteFrequency();
            //执行时间
            String executeTime = v.getExecuteTime();
            LocalTime localTime = LocalTime.parse(executeTime);
            //开始执行时间
            LocalDateTime firstExecutionTime = LocalDateTime.of(finalStartTime.toLocalDate(), localTime);
            // 计算相差天数
            LocalDateTime monthEndTime = LocalDateTime.of(finalStartTime.getYear(), checkInConfig.getFeeStartDate().getMonth(), finalStartTime.toLocalDate().lengthOfMonth(), 23, 59);
            // 间隔天数
            long diffDays = monthEndTime.toLocalDate().toEpochDay() - finalStartTime.toLocalDate().toEpochDay() + 1;
            if (v.getExecuteCycle().equals(0)) {
                // 日
                createTaskByDay(firstExecutionTime, diffDays, nursingTasks, executeFrequency, elder, v, nursingIds,nursingProjectMap);
            } else if (v.getExecuteCycle().equals(1)) {
                // 周
                createTaskByWeek(firstExecutionTime, diffDays, nursingTasks, executeFrequency, elder, v, monthEndTime, nursingIds,nursingProjectMap);
            } else {
                // 月
                createTaskByMonth(firstExecutionTime, monthEndTime, nursingTasks, executeFrequency, elder, v, nursingIds,nursingProjectMap);
            }
        });

        if (CollUtil.isEmpty(nursingTasks)) {
            return;
        }
        saveBatch(nursingTasks);
    }

    /**
     * 取消任务
     * @param dto
     */
    @Override
    public void cancelTask(CancelTaskDto dto) {//护理接口3
        //根据任务ID从数据库查询对应的护理任务对象
        NursingTask task = getById(dto.getTaskId());
        //判断任务是否存在：如果查询结果为null，记录日志并返回
        if (task == null){
            log.info("护理任务不存在");//记录日志，任务不存在
            return;//终止方法执行
        }
        //判断任务状态：如果任务状态已经是2，表示任务已经被取消或被执行
        if (task.getStatus() == 2){
            log.info("该任务已被取消");//记录日志，任务已取消
            return;//终止方法执行，避免重复取消
        }
        //执行取消任务操作：调用数据库的cancelTask方法，传入dto和当前时间

        nursingTaskMapper.cancelTask(dto,LocalDateTime.now());
    }
    /**
     * 执行护理任务
     *
     */
    @Override
    public void doTask(NursingTaskDto dto) {//护理接口4
        //根据任务ID从数据库查询对应的护理任务对象
        NursingTask task = getById(dto.getTaskId());
        //判断任务是否存在：如果查询结果为null，记录日志并返回
        if (task == null){
            log.info("护理任务不存在");//记录日志：任务不存在
            return;//终止方法执行
        }
        //执行护理任务
        nursingTaskMapper.doTask(dto);
    }


    /**
     * 修改任务时间
     *
     * @param dto
     */
    @Override
    public void updateTime(NursingTaskDto dto) {//护理项目5
        //根据任务ID从数据库查询对应的护理任务对象
        NursingTask task = getById(dto.getTaskId());
        //判断任务是否存在：如果查询结果为null，记录日志并返回
        if (task == null){
            log.info("护理任务不存在");
            return;
        }
        //判断任务状态：如果任务状态已经是2，表示任务已经被取消或被执行
        if (task.getStatus() == 2){
            log.info("该任务已被执行");
            return;
        }
        //改期
        nursingTaskMapper.updateTime(dto);


    }


    /**
     * 按月创建任务
     *
     * @param firstExecutionTime
     * @param monthEndTime
     * @param nursingTasks
     * @param executeFrequency
     * @param elder
     * @param v
     */
    private void createTaskByMonth(LocalDateTime firstExecutionTime, LocalDateTime monthEndTime, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, String nursingIds, Map<Long, String> nursingProjectMap) {
        LocalDateTime executionTime = firstExecutionTime;
        Integer diffDay = (monthEndTime.plusSeconds(1).getDayOfMonth() - executionTime.getDayOfMonth()) / executeFrequency;
        for (int x = 0; x < executeFrequency; x++) {
            // 根据时间差和执行顺序计算每个任务的具体时间
            LocalDateTime seconds = executionTime.plusDays(diffDay * x);
            // 初始化护理任务对象
            NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds,nursingProjectMap);
            // 将生成的任务添加到任务列表中
            nursingTasks.add(nursingTask);
        }
    }

    /**
     * 根据周为单位创建护理任务
     *
     * 此方法旨在根据给定的开始时间、差异天数、执行频率等参数，为指定的老人生成护理任务列表
     * 它考虑了跨年情况以及每月结束时间的限制，避免生成越过月末的有效任务
     *
     * @param firstExecutionTime 首次执行时间，用于计算后续任务的时间点
     * @param diffDays 任务之间的时间差，以天为单位，此方法专注于周级别，故此值应与7的倍数有关
     * @param nursingTasks 护理任务列表，方法将新生成的任务添加到此列表中
     * @param executeFrequency 执行频率，决定每周内任务执行的次数
     * @param elder 老人信息对象，任务相关的老人信息由此对象提供
     * @param v 护理项目计划的视图对象，包含项目ID等信息
     * @param monthEndTime 每月结束时间的限制，确保任务不会跨月生成
     * @param nursingIds 护理员ID列表，以字符串形式传递，用于分配任务给护理员
     */
    private void createTaskByWeek(LocalDateTime firstExecutionTime, long diffDays, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, LocalDateTime monthEndTime, String nursingIds,Map<Long, String> nursingProjectMap) {
        int i;
        // 以7天为步长遍历差异天数，创建每周的任务
        for (i = 0; i < diffDays - 7; i = i + 7) {
            // 计算每周结束时间
            LocalDateTime dayEndTime = LocalDateTime.of(firstExecutionTime.plusDays(i + 7).toLocalDate(), LocalTime.of(23, 59));
            // 计算本周的执行起始时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 根据执行频率计算时间差，用于确定本周内各任务的时间点
            Integer diffDay = (dayEndTime.plusSeconds(1).getDayOfYear() - executionTime.getDayOfYear()) / executeFrequency;
            // 根据执行频率生成本周的任务
            for (int x = 0; x < executeFrequency; x++) {
                // 根据时间差和执行顺序计算每个任务的具体时间
                LocalDateTime seconds = executionTime.plusDays(diffDay * x);
                // 初始化护理任务对象
                NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds,nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }

        // 处理边界情况，当i超过diffDays-7且小于diffDays时
        if (i > diffDays - 7 && i < diffDays) {
            // 计算到达diffDays时的结束时间
            LocalDateTime dayEndTime = LocalDateTime.of(firstExecutionTime.plusDays(i + 7).toLocalDate(), LocalTime.of(23, 59));
            // 如果结束时间与开始时间年份不同，则返回，避免跨年任务
            if (ObjectUtil.notEqual(dayEndTime.getYear(), firstExecutionTime.getYear())) {
                return;
            }
            // 计算执行时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 计算时间差，确定任务时间点
            Integer diffDay = (dayEndTime.plusSeconds(1).getDayOfYear() - executionTime.getDayOfYear()) / executeFrequency;
            // 根据执行频率生成任务，直到月末
            for (int x = 0; x < executeFrequency; x++) {
                // 计算每个任务的时间
                LocalDateTime seconds = executionTime.plusDays(diffDay * x);
                // 如果任务时间超过月末结束时间，则停止生成
                if (seconds.isAfter(monthEndTime)) {
                    break;
                }
                // 初始化护理任务对象
                NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds,nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }

    }




    /**
     * 按日创建任务
     * @param firstExecutionTime
     * @param diffDays
     * @param nursingTasks
     * @param executeFrequency
     * @param elder
     * @param v
     */
    /**
     * 根据天数创建护理任务
     * <p>
     * 该方法根据首次执行时间、任务间隔天数、护理任务列表、执行频率、老人信息和护理项目计划数据，
     * 创建一系列的护理任务。任务的创建以天为单位，直到达到任务间隔天数为止。
     *
     * @param firstExecutionTime 首次执行时间，标志着任务创建的起始时间
     * @param diffDays           任务间隔天数，确定需要创建任务的天数范围
     * @param nursingTasks       护理任务列表，创建的任务将被添加到此列表中
     * @param executeFrequency   执行频率，决定一天内任务执行的次数
     * @param elder              老人对象，包含执行任务的老人的信息
     * @param v                  护理项目计划数据对象，包含护理项目的相关信息
     */
    private void createTaskByDay(LocalDateTime firstExecutionTime, long diffDays, List<NursingTask> nursingTasks, Integer executeFrequency, Elder elder, NursingProjectPlanVo v, String nursingIds,Map<Long, String> nursingProjectMap) {
        // 遍历每一天，从首次执行时间开始，直到达到任务间隔天数
        for (int i = 0; i < diffDays; i++) {
            // 计算每一天的任务执行起始时间
            LocalDateTime executionTime = firstExecutionTime.plusDays(i);
            // 确定当天任务执行的结束时间（当天的23:59）
            LocalDateTime dayEndTime = LocalDateTime.of(executionTime.toLocalDate(), LocalTime.of(23, 59));
            // 计算当天内每次执行任务之间的小时差，用于确定执行时间点
            Integer diffHour = (dayEndTime.plusSeconds(1).getHour() - executionTime.getHour()) / executeFrequency;
            // 根据执行频率创建任务
            for (int x = 0; x < executeFrequency; x++) {
                // 计算每个任务的具体执行时间
                LocalDateTime seconds = executionTime.plusHours(diffHour * x);
                // 创建新的护理任务对象
                NursingTask nursingTask = getNursingTask(elder, v, nursingIds, seconds,nursingProjectMap);
                // 将生成的任务添加到任务列表中
                nursingTasks.add(nursingTask);
            }
        }
    }

    /**
     * 获取护理任务对象
     * @param elder
     * @param v
     * @param nursingIds
     * @param seconds
     * @return
     */
    private NursingTask getNursingTask(Elder elder, NursingProjectPlanVo v, String nursingIds, LocalDateTime seconds,Map<Long, String> nursingProjectMap) {
        NursingTask nursingTask = new NursingTask();
        // 设置任务状态
        nursingTask.setStatus(1);
        // 设置护理员ID列表
        nursingTask.setNursingId(nursingIds);
        // 老人姓名
        nursingTask.setElderName(elder.getName());
        // 设置床位号
        nursingTask.setBedNumber(elder.getBedNumber());
        // 设置预估服务时间
        nursingTask.setEstimatedServerTime(seconds);
        // 设置项目ID
        nursingTask.setProjectId(Long.valueOf(v.getProjectId()));
        // 设置老人ID
        nursingTask.setElderId(elder.getId());
        //匹配护理项目
        nursingTask.setProjectName(nursingProjectMap.get(nursingTask.getProjectId()));

        return nursingTask;
    }

}
